1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* px - search for processes and print top(1)-like status
*
* To the extent possible under law, Leah Neukirchen <leah@vuxu.org>
* has waived all copyright and related or neighboring rights to this work.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
#include <sys/auxv.h>
#include <sys/sysinfo.h>
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <proc/readproc.h>
int fflag;
static void
print_human(intmax_t i)
{
double d = i;
const char *u = "\0\0K\0M\0G\0T\0P\0E\0Z\0Y\0";
while (d >= 1024) {
u += 2;
d /= 1024.0;
}
if (!*u)
printf("%5.0f", d);
else if (d < 10.0)
printf("%4.1f%s", d, u);
else
printf("%4.0f%s", d, u);
}
static void
print_time(time_t t) {
unsigned int dd, hh, mm, ss;
ss = t % 60; t /= 60;
mm = t % 60; t /= 60;
hh = t % 24; t /= 24;
dd = t;
if (dd)
printf(" %3ud%02uh", dd, hh);
else if (hh)
printf(" %2uh%02um", hh, mm);
else
printf(" %2u:%02u", mm, ss);
}
int
main(int argc, char *argv[])
{
int clktck;
if ((clktck = getauxval(AT_CLKTCK)) <= 0)
if ((clktck = sysconf(_SC_CLK_TCK)) <= 0)
clktck = 100; /* educated guess */
struct sysinfo si;
sysinfo(&si);
pid_t me = getpid();
time_t now = time(0);
proc_t **result;
result = readproctab(PROC_FILLCOM | PROC_FILLUSR |
PROC_FILLSTAT | PROC_FILLSTATUS);
int matched = 0;
int c;
while ((c = getopt(argc, argv, "f")) != -1)
switch (c) {
case 'f': fflag = 1; break;
default:
fprintf(stderr,
"Usage: %s [-f] [PATTERN...]\n", argv[0]);
exit(1);
}
for (; *result; result++) {
proc_t *p = *result;
if (argc <= optind)
goto match;
for (int i = optind; i < argc; i++) {
for (size_t j = 0; j < strlen(argv[i]); j++)
if (!isdigit(argv[i][j]))
goto word;
if (p->tid == atoi(argv[i]))
goto match;
else
continue;
word:
if (fflag && p->cmdline) {
if (p->tid == me)
continue; /* we'd always match ourself */
for (int j = 0; p->cmdline[j]; j++)
if (strstr(p->cmdline[j], argv[i]))
goto match;
}
else if (strstr(p->cmd, argv[i]))
goto match;
}
continue;
match:
matched++;
if (matched == 1)
printf(" PID USER %%CPU VSZ RSS START ELAPSED CPUTIME COMMAND\n");
printf("%5d", p->tid);
printf(" %-8.8s", p->euser);
double pcpu = 0;
time_t seconds, cputime;
cputime = (p->utime + p->stime) / clktck;
seconds = si.uptime - p->start_time / clktck;
if (seconds)
pcpu = (cputime * 100.0) / seconds;
printf(" %4.1f", pcpu);
print_human(p->vm_size*1024);
print_human(p->vm_rss*1024);
char buf[7];
time_t start;
time_t seconds_ago;
start = (now - si.uptime) + p->start_time / clktck;
seconds_ago = now - start;
if (seconds_ago < 0)
seconds_ago = 0;
if (seconds_ago > 3600*24)
strftime(buf, sizeof buf, "%b%d", localtime(&start));
else
strftime(buf, sizeof buf, "%H:%M", localtime(&start));
printf(" %s", buf);
print_time(seconds_ago);
print_time(cputime);
if (p->cmdline)
for (int i = 0; p->cmdline[i]; i++)
printf(" %s", p->cmdline[i]);
else // kernel threads
printf(" [%s]", p->cmd);
if (p->state == 'Z')
printf(" <defunct>");
printf("\n");
}
exit(!matched);
}
|
